Global Patent Index - EP 4358533 A1

EP 4358533 A1 20240424 - ESTIMATION METHOD, ESTIMATION PROGRAM, AND ESTIMATION DEVICE

Title (en)

ESTIMATION METHOD, ESTIMATION PROGRAM, AND ESTIMATION DEVICE

Title (de)

SCHÄTZVERFAHREN, SCHÄTZPROGRAMM UND SCHÄTZVORRICHTUNG

Title (fr)

PROCÉDÉ D'ESTIMATION, PROGRAMME D'ESTIMATION ET DISPOSITIF D'ESTIMATION

Publication

EP 4358533 A1 20240424 (EN)

Application

EP 22869702 A 20220729

Priority

  • JP 2021150031 A 20210915
  • JP 2022029355 W 20220729

Abstract (en)

An estimation device for estimating a conversion factor which is a ratio between the number of photoelectrons generated from a pixel in response to inputting of light to the pixel and an electrical signal intensity output in response to the number of photoelectrons is provided. The estimation device includes: an acquisition unit configured to acquire a plurality of data groups including the electrical signal intensity for each of a plurality of pixels when light is input to the plurality of pixels; and a calculation unit configured to calculate the conversion factor for each of the plurality of pixels from the plurality of data groups based on a likelihood function indicating a likelihood of the conversion factor corresponding to the output electrical signal intensity.

IPC 8 full level

H04N 25/67 (2023.01); G01J 1/02 (2006.01); G01J 1/42 (2006.01)

CPC (source: EP)

G01J 1/02 (2013.01); G01J 1/42 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4358533 A1 20240424; CN 117941369 A 20240426; JP WO2023042554 A1 20230323; WO 2023042554 A1 20230323

DOCDB simple family (application)

EP 22869702 A 20220729; CN 202280062364 A 20220729; JP 2022029355 W 20220729; JP 2023548152 A 20220729